Niagara Falls was illuminated in the colours of the Bulgarian national flag on the occasion of the Day of the Unification of the Principality of..
The celebrations on the occasion of the 139th anniversary of the Unification of the Principality of Bulgaria and Eastern Rumelia and the Feast of..
Tsanko Tsankov became the first swimmer to cover a distance of over 100 kilometers in the Danube River. "Tsanko Tsankov did it! 108..
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